CN214699369U

CN214699369U - Overflow valve for controlling inflow

Info

Publication number: CN214699369U
Application number: CN202120346217.3U
Authority: CN
Inventors: 李文钧
Original assignee: Ji'nan Boer Power Equipment Co ltd
Current assignee: Ji'nan Boer Power Equipment Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-11-12
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to a control overflow valve of inflow belongs to the technical field of overflow valve, and it includes valve body and adjusting part, set up the chamber of sliding in the valve body, the inflow hole has been seted up to chamber one end of sliding, chamber one side intercommunication that slides has the outflow pipe, it has the case to slide the intracavity, the case spring has been cup jointed on the case, the chamber of sliding is provided with the briquetting, the one end that the case was kept away from to the case spring sets up on the briquetting, adjusting part sets up on the valve body for the opening size in control inflow hole. When the overflow valve normally works, external fluid enters the sliding cavity from the inflow hole to push the valve core to move, so that the valve core is separated from the inflow hole, the fluid can enter the outflow pipe, the pressure in the inflow hole is unchanged, but when the fluid discharged from the outflow pipe needs to be less, the adjusting assembly is started, the opening of the inflow hole is reduced by the adjusting assembly, and the flow discharged from the outflow pipe is reduced.

Description

Overflow valve for controlling inflow

Technical Field

The application relates to the field of overflow valves, in particular to an overflow valve capable of controlling inflow.

Background

The main parameter of the safety overflow valve is the discharge capacity, and the discharge capacity is determined by the caliber of a valve seat and the opening height of a valve clack.

The Chinese utility model with the publication number of CN207364352U and the bulletin date of 20180515 discloses an overflow valve for an electric control pump of a diesel engine, which comprises an overflow valve body, an overflow valve spring seat, an overflow valve spring, a steel ball, a copper washer and an overflow valve body, wherein the overflow valve body is provided with a stepped hole which is axially communicated, the overflow valve spring seat is connected with the outer end of the large hole of the stepped hole of the overflow valve body, the steel ball is matched with the inner end of the large hole of the stepped hole, the diameter of the steel ball is larger than the diameter of the small hole of the stepped hole, the inner side end surface of the small hole is provided with an inner spherical surface matched with the outer spherical surface at one side of the steel ball, the steel ball can reciprocate in the overflow valve body, the overflow valve body between the steel ball and the overflow valve spring seat is provided with a radial overflow valve port I, the overflow valve body between the overflow valve port I and the overflow valve spring seat is provided with a radial overflow valve port II, the outer spherical surface at the other side of the steel ball is matched with one end of the overflow valve spring, and the other end of the overflow valve spring is matched with the overflow valve spring seat. The oil delivery pump supplies oil to the small hole, the steel ball slides after being subjected to oil pressure, the overflow valve spring is compressed, and when the steel ball moves to enable the first overflow valve port to be opened, the oil in the small hole is discharged from the first overflow valve port.

In view of the above-described related art, the inventors thought that the larger the fluid pressure entering the small hole, the further the distance the steel ball moves, the more the relief valve port is completely opened, and the constant amount of fluid is always discharged from the relief valve port.

SUMMERY OF THE UTILITY MODEL

The present application provides a relief valve that controls the inlet flow rate in order to reduce the flow rate of fluid discharged from a first relief valve port when the fluid pressure is high.

The application provides a control overflow valve of inflow adopts following technical scheme:

the utility model provides a control overflow valve of inflow, includes valve body and adjusting part, set up the chamber of sliding in the valve body, the inflow hole has been seted up to chamber one end of sliding, chamber one side intercommunication that slides has a flow outlet pipe, it has the case to slide the intracavity, the case spring has been cup jointed on the case, the chamber of sliding is provided with the briquetting, the one end that the case was kept away from to the case spring sets up on the briquetting, adjusting part sets up on the valve body for the opening size in control inflow hole.

Through adopting above-mentioned technical scheme, when the overflow valve is in normal work, external fluid gets into the intracavity that slides from the influent stream hole, promotes the removal of case to make the case break away from the influent stream hole, make in the fluid can get into the effluent stream pipe, pressure when getting into in the influent stream hole is unchangeable, but when the fluid of following the interior exhaust of effluent stream pipe needs less, start adjusting part, adjusting part makes the opening of influent stream hole diminish, thereby make the interior exhaust flow of effluent stream pipe diminish.

Optionally, the adjusting assembly comprises an electric push rod, the electric push rod is fixed on the valve body, the telescopic end of the electric push rod is connected with the pressing block, and the pressing block slides in the sliding cavity.

Through adopting above-mentioned technical scheme, when the drive briquetting slided, start electric putter, electric putter promotes the removal of briquetting to realize the regulation of case and influent stream hole distance.

Optionally, the adjusting assembly includes a motor and a lead screw, the lead screw is rotatably connected with the wall of the sliding cavity, a stop block is connected to the lead screw in a threaded manner, the stop block slides in the sliding cavity, the motor is fixed on the valve body, an output shaft of the motor is fixedly connected with the lead screw in a coaxial manner, and the pressing block is fixed in the sliding cavity.

Through adopting above-mentioned technical scheme, starter motor, motor drive lead screw rotate to make the dog remove, the opening size in dog control inflow hole.

Optionally, a rotating groove is formed in the valve body, the lead screw rotates in the rotating groove, the stop block slides in the rotating groove, the rotating groove is shielded by the stop block initially, and the length of the stop block is larger than the diameter of the inflow hole.

Through adopting above-mentioned technical scheme, set up the purpose in rotation groove for the dog is laminated with the chamber wall that slides, avoids the fluid to get into and rotates the inslot, influences the transmission effect of lead screw.

Optionally, a sealing block is fixed on the pressing block, copper alloy polytetrafluoroethylene is arranged on the sealing block, and the copper alloy polytetrafluoroethylene is abutted to the inner wall of the sliding cavity.

Through adopting above-mentioned technical scheme, when the fluid is water, water infiltration advances electric putter can cause electric putter's short circuit, consequently need seal, and copper alloy polytetrafluoroethylene not only plays sealed effect, but also can reduce the friction of sealed piece and the intracavity wall that slides, plays lubricated effect.

Optionally, the sealing block is the radius platform form, copper alloy polytetrafluoroethylene is fixed in on the briquetting, the joint groove has been seted up to copper alloy polytetrafluoroethylene, the sealing block joint is in the joint inslot.

Through adopting above-mentioned technical scheme, set the purpose of sealed piece to the form of the frustum of a cone, strengthen copper alloy polytetrafluoroethylene's sealed effect for copper alloy polytetrafluoroethylene receives behind the water pressure tighter that supports with the intracavity wall that slides.

Optionally, the copper alloy polytetrafluoroethylene is in threaded connection with the sealing block.

Through adopting above-mentioned technical scheme, set up copper alloy polytetrafluoroethylene in the purpose of sealed piece threaded connection, be convenient for realize copper alloy polytetrafluoroethylene in the connection of sealed piece, make both connect more firmly.

Optionally, a plurality of annular grooves are formed in the sealing block, the copper alloy polytetrafluoroethylene is provided with a plurality of annular grooves, and each copper alloy polytetrafluoroethylene can be respectively clamped in each annular groove.

Through adopting above-mentioned technical scheme, with the purpose of every copper alloy polytetrafluoroethylene joint in every annular respectively for copper alloy polytetrafluoroethylene forms and seals step by step, further strengthens copper alloy polytetrafluoroethylene's sealed effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the purpose of setting the regulating assembly is to regulate the size of the opening of the inflow hole through the regulating assembly, so that when the pressure in the inflow hole is high, the discharged flow in the outflow pipe is reduced;

2. the sealing block and the copper alloy polytetrafluoroethylene are arranged for sealing, reducing the friction between the sealing block and the inner wall of the sliding cavity and lubricating;

3. the purpose of setting the sealing block into the shape of the inverted round platform is to enhance the sealing effect of the copper alloy polytetrafluoroethylene, so that the copper alloy polytetrafluoroethylene is pressed against the inner wall of the sliding cavity more tightly after being subjected to water pressure.

Drawings

Fig. 1 is a sectional view showing an inner structure of a valve body of embodiment 1 of the present application after a part of the valve body is cut away.

Fig. 2 is an exploded view showing the attachment of the seal block to the copper alloy teflon.

Fig. 3 is a sectional view showing the internal structure of the valve body of embodiment 2 after a part of the valve body is cut away.

Figure 4 is an exploded view of the seal block and copper alloy teflon of example 3.

Description of reference numerals: 100. a valve body; 110. a sliding cavity; 111. an inflow hole; 112. a discharge pipe; 120. a valve core; 121. a spool spring; 122. briquetting; 200. an adjustment assembly; 210. an electric push rod; 220. a motor; 221. a lead screw; 222. a stopper; 223. a rotating groove; 300. A sealing block; 310. copper alloy polytetrafluoroethylene; 311. a clamping groove; 320. and a ring groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an overflow valve for controlling inflow.

Example 1

Referring to fig. 1, the overflow valve for controlling inflow comprises a valve body 100, a sliding cavity 110 is formed in the valve body 100, an inflow hole 111 is formed in one end of the sliding cavity 110, and an outflow pipe 112 perpendicular to the axis of the sliding cavity 110 is communicated with a position, close to the inflow hole 111, on one side of the sliding cavity 110. The sliding cavity 110 has a valve core 120 slidably disposed therein, and the valve core 120 is conical and sleeved with a valve core spring 121. A pressing block 122 is slidably disposed in the sliding cavity 110, one end of the spool spring 121 is welded to the spool 120, and the other end is welded to the pressing block 122. An adjustment assembly 200 is provided on the valve body 100, and the adjustment assembly 200 is used to control the outlet size of the inflow hole 111. The adjustment assembly 200 includes an electric push rod 210, and the electric push rod 210 is mounted to an end of the valve body 100 away from the inflow hole 111 by a bolt. The pressing block 122 is arranged in the sliding cavity 110, and the telescopic end of the electric push rod 210 drives the pressing block 122 to slide. Referring to fig. 2, in order to realize the sealing between the pressing block 122 and the sliding cavity 110 and avoid that the fluid is water and permeates into the adjusting assembly 200 to affect the operation of the adjusting assembly 200, a sealing block 300 is welded on the pressing block 122, copper alloy polytetrafluoroethylene 310 is arranged on the sealing block 300, the copper alloy polytetrafluoroethylene 310 abuts against the inner wall of the sliding cavity 110, and the telescopic end of the electric push rod 210 abuts against the sealing block 300.

In order to realize the installation of the sealing block 300 and the copper alloy polytetrafluoroethylene 310, the sealing block 300 is in an inverted circular truncated cone shape, a clamping groove 311 is formed in the copper alloy polytetrafluoroethylene 310, the sealing block 300 can be clamped in the clamping groove 311, and the copper alloy polytetrafluoroethylene 310 is welded on the pressing block 122. The implementation principle of the overflow valve for controlling the inflow of the embodiment of the application is as follows: when the overflow valve works normally, after fluid enters the inflow hole 111, the movement of the valve core 120 is pushed, and the fluid enters the outflow pipe 112 from the inflow hole 111;

when the pressure of the fluid entering the inflow hole 111 is high, and the flow rate of the fluid in the outflow pipe 112 is low, the electric push rod 210 is started, the electric push rod 210 pushes the sealing block 300 to slide, so that the valve core spring 121 generates pressure on the valve core 120, and the valve core 120 is pushed to move towards the inflow hole 111, thereby realizing secondary adjustment.

Example 2

Referring to fig. 3, the difference from embodiment 1 lies in the difference of the adjusting assembly 200, the adjusting assembly 200 includes a motor 220, the motor 220 is mounted on the outer wall of the valve body 100 through a bolt, and an output shaft of the motor 220 is coaxially welded with a lead screw 221. A rotary groove 223 is formed in the valve body 10, and the screw 221 horizontally rotates in the rotary groove 223. The screw 221 is threadedly connected with a stopper 222, the stopper 222 slides in the rotating groove 223, and the length of the stopper 222 is greater than the diameter of the inflow hole 111. Initially, the stopper 222 may shield the rotation groove 223 from water entering the rotation groove 223. The pressing block 122 is welded in the slipping chamber 110.

The implementation principle of the overflow valve for controlling the inflow of the embodiment of the application is as follows: when the overflow valve works normally, after fluid enters the inflow hole 111, the movement of the valve core 120 is pushed, and the fluid enters the outflow pipe 112 from the inflow hole 111;

when the pressure of the fluid entering the inlet hole 111 is high and the flow rate of the fluid in the outlet pipe 112 is low, the motor 220 is started, the motor 220 drives the screw rod 221 to rotate, and the stop 222 controls the size of the outlet of the inlet hole 111.

Example 3

Referring to fig. 4, the difference from embodiment 1 is that the copper alloy ptfe 310 and the sealing block 300 are installed differently, the sealing block 300 is made of an elastic material, a plurality of ring grooves 320 are formed in the sealing block 300, and the ring grooves 320 are uniformly distributed along the height of the sealing block 300. Cut apart into a plurality ofly with copper alloy polytetrafluoroethylene 310 to its inner wall carries out the chamfer setting, and every copper alloy polytetrafluoroethylene 310 joint respectively in an annular 320, thereby realizes sealed step by step, further strengthens copper alloy polytetrafluoroethylene 310's sealed effect. In addition, the copper alloy teflon 310 can also be screwed with the sealing block 300 to realize the installation of the two.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An overflow valve for controlling inflow is characterized in that: including valve body (100) and adjusting part (200), set up the chamber of sliding (110) in valve body (100), influent stream hole (111) has been seted up to chamber of sliding (110) one end, chamber of sliding (110) one side intercommunication has outlet pipe (112), it has case (120) to slide in chamber of sliding (110), case spring (121) has been cup jointed on case (120), chamber of sliding (110) is provided with briquetting (122), the one end that case (120) were kept away from in case spring (121) sets up on briquetting (122), adjusting part (200) set up on valve body (100) for the opening size of control influent stream hole (111).

2. An inlet flow controlled relief valve according to claim 1 further characterized by: the adjusting component (200) comprises an electric push rod (210), the electric push rod (210) is fixed on the valve body (100), the telescopic end of the electric push rod (210) is connected with a pressing block (122), and the pressing block (122) slides in the sliding cavity (110).

3. An inlet flow controlled relief valve according to claim 1 further characterized by: the adjusting assembly (200) comprises a motor (220) and a lead screw (221), the lead screw (221) is rotatably connected with the wall of the sliding cavity (110), a stop block (222) is connected to the lead screw (221) in a threaded manner, the stop block (222) slides in the sliding cavity (110), the motor (220) is fixed on the valve body (100), an output shaft of the motor (220) is coaxially and fixedly connected with the lead screw (221), and the pressing block (122) is fixed in the sliding cavity (110).

4. An inlet flow controlled relief valve according to claim 3 wherein: the valve body (100) is internally provided with a rotating groove (223), the lead screw (221) rotates in the rotating groove (223), the stop block (222) slides in the rotating groove (223), initially, the stop block (222) shields the rotating groove (223), and the length of the stop block (222) is larger than the diameter of the inflow hole (111).

5. An inlet flow controlled relief valve according to any one of claims 1 to 4 characterised in that: the pressing block (122) is fixedly provided with a sealing block (300), the sealing block (300) is provided with copper alloy polytetrafluoroethylene (310), and the copper alloy polytetrafluoroethylene (310) is abutted to the inner wall of the sliding cavity (110).

6. An inlet flow controlled relief valve according to claim 5 wherein: sealed piece (300) are the radius platform form, copper alloy polytetrafluoroethylene (310) are fixed in on briquetting (122), joint groove (311) have been seted up in copper alloy polytetrafluoroethylene (310), sealed piece (300) joint is in joint groove (311).

7. An inlet flow controlled relief valve according to claim 5 wherein: the copper alloy polytetrafluoroethylene (310) is in threaded connection with the sealing block (300).

8. An inlet flow controlled relief valve according to claim 5 wherein: a plurality of ring grooves (320) are formed in the sealing block (300), the copper alloy polytetrafluoroethylene (310) is provided with a plurality of rings, and each copper alloy polytetrafluoroethylene (310) can be clamped in each ring groove (320) respectively.